I've just recently bought a 2 bedroom, postwar home which has an addition along the rear of the house. It looks like the addition began life as a porch, as it is supported on concrete pilings, no other foundation. The underside of the addition is about 12-14 inches off the ground, and is open to the air on three sides. Needless to say, the floor of the addition is very cold in winter, especially since the only heating duct is on the house-side of the room. (running through the old basement window) I have consulted a contractor about using spray urethane insulation under the floor, but he says there is not enough clearance for him to get under the floor to spray. Do you have any suggestions as to how I could insulate or otherwise warm up the room?
Answer:
The only thing I've seen that will warm up a room like this is to create a crawl space under it and then insulate the walls and floor of the crawl space (not house). After that, the crawl space can be heated and the room is warm.
Courtesy of Ren Molnar, Construction Consultant at HomeFocus.com. I can also be reached at (613) 748-3003 and Home Focus – The Radio Show is broadcast live 8 to 10 A.M. (Ottawa, Ont. time) on Saturdays on www.cfra.com. In the interests of retaining credibility and in fairness to all, I cannot recommend prices, people nor companies for various projects.
